Mercedes-Benz C-Class 2014 Owner's Manual page 325

Display messages
322
Display messages
!
Turn on the igni‐ Turn on the igni‐
tion to release tion to release
the parking brake the parking brake
J
Check brake fluid Check brake fluid
level level
#
Check brake pad Check brake pad
wear wear
Collision Preven‐ Collision Preven‐
tion Assist Plus tion Assist Plus
currently unavail‐ currently unavail‐
able See Owner's able See Owner's
Manual Manual
Possible causes/consequences and M M Solutions
The red ! indicator lamp lights up.
You attempted to release the electric parking brake while the igni-
tion was switched off.
Switch the ignition on.
X
There is insufficient brake fluid in the brake fluid reservoir.
In addition, the red J warning lamp lights up in the instrument
cluster and a warning tone sounds.
G WARNING
Braking efficiency may be impaired.
There is a risk of an accident.
Pull over and stop the vehicle safely as soon as possible, paying
X
attention to road and traffic conditions. Do not continue driving
under any circumstances.
Secure the vehicle against rolling away (
X
Consult a qualified specialist workshop.
X
Do not top up the brake fluid. This does not correct the fault.
X
The brake pads/linings have reached their wear limit.
Visit a qualified specialist workshop.
X
COLLISION PREVENTION ASSIST PLUS is temporarily inoperative.
Possible causes:
the radar sensor system is temporarily inoperative, e.g. due to
R
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation
the system is outside the operating temperature range
R
the on-board voltage is too low
R
Once the causes listed above no longer apply, the display message
goes out.
COLLISION PREVENTION ASSIST PLUS is operational again.
If the display message does not disappear:
Pull over and stop the vehicle safely as soon as possible, paying
X
attention to road and traffic conditions.
Secure the vehicle against rolling away (
X
Restart the engine.
X
page 207).
Y
page 207).
Y